Dumping appliance for hoister-buckets.



A. LAMBERT. DUMPING 'APBLIANCE FOR HOISTER BUGKETSi APPLICATION FILED SEPT. 11. 1911.

1,034,806, Patented Aug. 6, 1912.

Q SHEETS RHEET 1 Wi mm (w A. LAMBERT.

nnmrms APPLIANGB FOB HOISTEB. BucKE'rs.

APYLIGATION FYLBD SEPT 11, 1911.

Patemed A11 2; 1912.

minim z APIhIGATION TILED SEPT. 11, W11.

Patented Aug. 6, 1912.

4 SHEETS SHEETS A. LAMBERT.

DUMPING APPLIANCE FOB HOISTER BUCKET3. APPLICATION FILED SEPT. 11, 1911.

1 ,O34,806, Patented Aug. 6, 1912..

4 SHEETS 'BHEET 4.

UNITED PATENT OFFICE;

ASHER LAMBERT, O1 'NEWK'EK, NEW JIBBBYl neutrino Arrmee F03 flotsam-enema.

Specification of Letters ram;

a incationmea September i11,;.191 1,. Serial in. 648,764.

To all whom it may concern? I Be it known that I, ASHER LAMBERT, a citizen of the United States, residing at Johnson avenue, Newark, county of Essex, be

, position by two sloping back-legs or braces and has a boom which. carries the hoistingrope and bucket movably, and the invention relates particularly to such a derrick having 'a sectional dumping-bucket with a trippingrope operating to separate the hinged sections of the bucket for opening the same. Such tripping=rope is ,commonly provided with a balanceweight to take up its slack during the raising of the bucket, such weight rising and falling as the bucket falls and rises, without opening the bucket-sections.

By wrapping the tripping-rope around a brake-pulley before it is connected with the balance-weight it may be arrested at any point by operating the pulley-brake; the descent of thebucket causing. the sections to then open and dump the contents.

The present improvements consist 111 i means applied-to the mast of the derrick,

and in some cases to the back-bgs, to guide the tripping rope and support lllB balanceweightconveniently, and also in a particular arrangementof the tripping-brake and its lever-pulley in relation to thebraki -lever (if the hoisting-drum, so that the hoisting eneer can control with equal ease the lowering of the load and the arresting of the tripping-rope.

, The invention will be understood by reference to the annexed drawing, in which Fi ure 1 is an elevation of a derrick provide with the improvements; Fig. 2 is a front view of the derrick-mast and backlegs with the connections of the trippingrope; Fig. 3 is a plan of the principal operating parts upon a larger scale than the preceding figures; Figwtis a side elevation of the brake-pulley and its SUDDOIUHQ frame;

Fig.' 5 is across-section of 'the-balance-beam and ts. fastenings; and Fi Gshoivs the con- Ile0tl0l1 of the balance-pol ey to the balance am. The derrick is shown with, most ,A,; boom B and two back-legs C which'are shown set at an angle of 45 degrees tothe mast and 90 degrees to one another, as iscommonphlii'i their angle to one another mayvary under different conditions.

A hoisting engine-frame .Qfis shownsecured upon aplatform D'- with-tits center line radial to the mast, and havi ,a hoisting-drum' E'with frict' n-wheel at ne- Patenbed Aug.6,1912;

end of the same with w ich the drum be, engaged by 'means of a friction-lentil. A brake-strap b is shown, applied toma brake-wheel upon the'drum and is controlled by a brake-1ever c. These levers are merely indicated in the drawingebut arranged, as

in practice, adjacent one anotl er'atone side of the hoister-frame.

The frame G of the tripping-.brakespulley to control the tripping-rope .lfis shown 58-; cured upon the platform D" adjacent to. the brake-levers, such friction-pulley beimgpliovided with its own brake-levers". 4

The hoisting-rope d is shown; exten.ded

from the drum Ebeneath a guide-pulley as.

in the step H of the derrick, and thenceiover" that thearresting of the tripping rope while I the bucket is descending, causes the sections to separate, as shown in Fig. "1 in fulllines.

.The bucket is shown closed in dotted lines h v The tripping-rope is shown carried over I a pulley 2' upon the boom, the pulley f upon,

the mast, and over a pulley in the step vof the derrick, and thence to abrakee-pulley in;

the frame G, from which it is connected to a balance-Weight I.

Figs. 3 and 4 show a brake-pulley formed with two'speeds of different sizes, and the tripping-rope Z wrapped around and (astened to the larger speed n, and the portion 5 a strap 5 which is controlled by the brakelever c, and the frame G' for the brake-pub ley is shown with its center line nearly radial to the derrick-mast so that the tripplug-rope can be extended conveniently to the guide-pulley in the mast-step.

e balance-pulley q is shown in Fig. 2 supported upon a balance-beam J of I-section which is secured detachably upon angle-brackets t bolted to the rear sides of the 1 5 back-legs C near their upper ends.

The brackets shown in Fig. 5 have plates t? upon their upper sides, which plates set level,-and remain level if the baclclegs be moved to or from one another, as the backlegs always remain at an angle of 45 degrees to the mast. It will be understood by reference to Fig. 1, that the brackets t are attached to the back-legs at a common level near the top of such legs, and the balance- ESbeam J when'supported upon such bracket On these two level is therefore level. plates t the balance-beam J is secured adjustably so that it can be slid across the plates and extended outside of the same to any desired degree, as shown in Fig. 3.

The clamps for holding the beam adjust-- ably upon the brackets are shown in Fig. 5 formed of hook-bolts 0.

To diminish. the vertical movement of the balance-weight I, it is provided with a ulley I, and the tripping-rope is carried eneath such pulley up to a clevis p clamped upon the I-beam. The clevis is formed of two parts, as shown in Fig. 6,

which permits it to be clamped at any desired point upon the bottom flange of the I-beam. The balance-pulley is also connected with the I-beam by a similar clevis, which permits a similar adjustment, and

the adjustability of these parts of the bal ance-beam permits them to be shifted to any position that may be required to operate under existing conditions.

Theoperation of'the apparatus is as follows: When the bucket israised with a load,

the balance-weight I takes up the slack of the tripping-rope without opening ,the bucket-sections,rotating the pulleys n and n idly, but when the bucket is swung by turning theboom to the required position for unloading, \the brake-lever c is depressed at the point where the bucket is to be dumped, thus arresting the movement of the tripping 'rope Z, which pulls the sections of the bucket apart.

The brackets and all the attachments of the balance beam can be-manu actured as a new article of manufacture for application to the back-legs of any derrick.

The construction of the brake-pulley upon an independent frame G having the brake-lever-pivoted thereon, makes this part of the apparatus self-contained so that it may be located in any relation to the hoistmg apparatus, and also permits such brakepulley and its frame to be constructed as a new article of manufacture and sold to the users of derricks forcont-rolling the operation of the tripping-rope.

It will be observed in Fig. 3, that the hoisting-engine is set radially to the mast, so that the hoisting-rope (Z can be readily led thereto from the hoisting-drum E, and the frame G for the brake-pulley is also set with its center line nearly radial to the mast so that the tripping-rope can be extended conveniently from the guide-pulley in the mast-step to the brake-pulley, but a leaderpulley Z may be used to lead the trippingrope past any obstruction between the mast and the brake-pulley.

The brake-lever 0 upon the frame G is so arranged that the frame may be set close to the friction-lever a and brake-lever 0 upon the hoisting-engine.

The levers a, c and c are shown in Fig. 3 as if arranged to operateby foot which is usual, each being providedwith a balanceweight a to restore it to its normal position; but it.is immaterial whether the levers be arranged to operate by hand or by foot.

The friction-pulley is shownherein formed with two speeds of different sizes, but the operation of the rope is the same as if itwere wrapped around a single pulley without any fastening to either. To make this clear, the fastening for the ropes-to their re spective speeds is effected, as shown in Figs. 2 and 3 by a notch in the flange n between the two speeds, and the rope extended continuously around one speed and then through the notch to the other speed; Fig. 2 showing the tripping-rope nearly unwound from the speed 11. and correspondingly wound upon the speed '12, the balance-weight being thereby lowered.

The beam J supported adjustably upon the rear sides of the back-legs near their upper ends affords an opportunity of supporting the clevis p and the balance-pulley q in various relations. to the baclclegs when the derrick and back-legs are erected in any working position, as the mere loosening of the bolts or clamps o'permits the beam to be projected outside of either of the back-legs; while\the connection of the clevis and the balance-pulley adjustably to the beam per= mits those parts also to be adjusted upon the beam to make the balance-weight in the bight of the tripping-rope, rise and fall in the most convenient location. This adjust ment to the back-legs fully avoids the bolting or nailing of the parts temporarily to the back-legs to support the clevis or the pulley in a convenient working position, and permits the manufacturer of the derrick to eliver it in readiness for thus adjusting the parts. 7

Having thus set forth the'nature of the invention what is claimed herein is:

1. In a derrick having a so-called dumping-bucket provided with a hoisting-rope and with a tripping-rope to open or dump the bucket,-the combination, with the boom, the mast, and its back-legs, of a balancebeam extended transversely across both the' back-legs near their upper ends and projected outside its point of attachment to the said back-legs and secured adjustably to the legs and movable longitudinal thereupon, a tripping rope-pulley mounted upon such beam and the tripping-rope extended from the bucket over the said pulley, the adjustability of the beam ermitting its projection outside eitherot the backlegs to support the clevis p and balance-pulley g in various relations to the back-legs.

2. In a derrick having aso-called dumping-bucket provided-with a hoisting-rope and with a tripping-rope to open or dump the bucket, the combination, with the boom, the mast, and its back-legs, of brackets projected from the rear sides of the back-legs at a common level near the top of such legs,

a balance-beam extended transversely across both the brackets, and secured ad ustabIy upon thelevel surfaces of the brackets, a tripping rope pulley mounted adjustably upon t e balance-beam, and the trippingrope extended from the bucket over the sald pulley.

3. In a derrick having a ing-bucket provided with a hoisting rope and with a trippi -rope to open or dump the bucket, the comfiination, with the boom, the mast and its back-legs, of brackets proj ected from the rear sides of the back-legs at a common level near the top of such legs, a balance-beam extended transversely across both the brackets and projected outside its:

point of support, a clevis p clamped upon such beam outside such point of support, a balance-pulley q mounted adjust-ably upon the said beam,,a*nd a tripping-rope carried over the said balance-pulley and attached to the clevis and having the weight 1' suspended in its bight, substantially as herein set forth. In testimony whereof I have hereunto set my hand in the Witnesses.

ASHER LAMBERT.

Witnesses D. BINNS, THOMAS S. CRANE.

so called dumppresence of two subscribing 

